A Study on the Quality Characteristics of Material Management Using Kano Model and Timko Coefficients
Jun-Il Jung, Ju-Yong Lee, Junhe Han · 대한설비관리학회지 · 2021
Purpose In cases of inventory management at small and medium-sized manufacturing companies, it is difficult to distinguish priorities of on-site inventory management, and the activities to identify and improve inventory management problems are not clear. To solve these problems, we suggest the methodology to present the quality characteristics that need improvement first. Methods We propose the quality characteristics that need improvement by applying the methodology. We define the quality attributes of inventory management and classify the quality characteristics through a survey applying Kano model. Using the results of the survey, Timko’s customer satisfaction coefficient is calculated to improve the quality of inventory management. Results The proposed model is validated through a case study of a shipbuilding equipment manufacturing company. The model identified and classified 11 attributes of the quality of inventory management. The reliability of these attributes are verified by the Cronbach’s alpha (α). Conclusion The proposed model contributes to identify key attributes that affect the manufacturer''s inventory management. The model can also provide priorities of the attributes that need to be improved first. Therefore, this research can help to clearly identify and progress the improvement activities that are really needed in practical manufacturing companies.